Attachment for internal-combustion engines



W. E. STITZER.

ATTACHMENT FOR INTERNAL COMBUSTION ENGINES. APPLICATION II'ILED NOV. 24, 1919.

Patented Aug. 31, 1920.

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A TTORA/EVS w. E. STIT ZER. ATTACHMENT FOR INTERNAL COMBUSTIONENGINES.

APPLICATION FILED NOV. 24, 1919.

1,35 ,70 4 PatehtedAug. 31,1920.

2 SHEETS-SHEET 2- Hun WITNESSES INVENTOR By I c. r ATTORNEYS marten stares WILLIAM E. STITZER, OF MUSKOGEE, OKLAHOMA.

ATTACHMENT FOR INTERNAL-COlv'lIBUSTION ENGINES.

Specification of Letters Patent.

Patented Aug. 31, 1920.

Application filed November 24, 1919. Serial No. 340,173.

To all whom it may concern:

Be it known that I, /VILLIAM'E. STITZER, a citizen of the United States, and a resident of liIuskogee, in the county of Muskogee and State of Oklahoma, have invented certain new and useful Improvements in Attachments for Internal-Combustion Engines, ofwhich the following is a specification.

My invention is an improvement in attachments for internal combustion engines, and has for its object to provide mechanism for use in connection with lubricator and controlled by the level of the oil in the lubricator, for stopping the motor when the oil falls below a predetermined level, by short circuiting the ignition system.

In the drawings:

Figurel is a front view of the lubricator provided with the improved attachment, the attachment being embodied in the lubricator, Figs. 2 and 3 are sections on the lines 22 and 33 respectively, of Fig. 1,

Fig. 4 is a side view of the float,

Fig. 5'is avertical section of the lower end of the lubricator,

Fig. 6 is a front view of the attachment wherein the controlling mechanism is independent of the lubricator,

Fig. 7 is a section on the line 77 of Fig. 6.

In the embodiment of the invention shown in Figs. 1 to 5, the lubricator 1 which is of usual construction, being composed of glass and brass has within the same a float 2, which rises and falls with the level of the lubricant, the float being guided on the tubular structure 3 at the center of the casing, I and by a rod 4 which 1s arranged eccen tricto the casing. A rod 5 of suitable conducting material is arranged within the lubricator casing, the said rod extending downwardly from a binding post 6 con nected with the top of the lubricator, and

insulated therefrom as shown. Referring to Figs. 2 and 3, it will be seen that the float 2 is a split ring, the split being at the contact bar 5. Across this split there is held on the float an arch shaped bar 7 of conducting material, the said bar being held to the float in any suitable or desired manner, as for instance by the bindings 8. This bar 7 is adapted to contact with an angular lug 9 on the lower end of the rod 5, when the float is in lowermost position, that is when the lubricant is about exhausted. The ends of this bar '7 are connected to a strip 10 of conducting material, as for instance copper, which is held on the under face of the float in any suitable or desired manner, and this strip is adapted to engage the bottom of the lubricator casing, when the oil level falls far enough, to complete the short circuit,through the lubricator casing to ground.

In the embodiment of the invention shown in Figs. 6'and'7, an auxiliary casing 11 is provided, which is connected to the lubricator. 12 at both ends, as indicated at 13 and 14 respectively, in such manner that the lubricant will stand in the casing 1 at the same level as in the lubricatorcasing 12. A float 15 is arranged within the casing, and this float carries a contact plate 16 which is adapted to contact with a Contact screw 17, connected by a binding post 18 with the easing 11, in insulated relation. The lower face of the float 15 carries a strip 19 of conducting material, which-is adapted tocontact with the bottom of the casing 11, to short circuit the motor, it being understood ing ll to ground. 1

In operation with either construction, when the lubricant level falls to a point such that the metal strip on the bottom of the contact bar 7, or the plate 16 as the case may be will complete the circuit to ground, through the rod 5 or the binding post 18 as the case may be. The ignition being short 90 comprising anjarc shapedfloat, a rod on 100 which the float has guided movement, a eontact member connectlng the ends of the float, V and'a rodsupported by the caslng 1n insulating relation and having a lug at its lower end for engagement by the contact member. 105

, WILLIAM E. STITZER.

that the short circuiting is through the casthe float contacts with the lubricator casing,- I f 

